Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3
779
FNUS55 KTFX 190937
FWFTFX

Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
337 AM MDT Thu Jun 19 2025

...Warm temperatures, low humidity, breezy winds and thunderstorms
today...

...Thunderstorms, some with heavy rainfall on Friday...

...Widespread lower elevation rainfall and mountain snowfall
Saturday into Sunday...


.DISCUSSION...
Quiet conditions this morning will give way to breezy, warm and
low humidity conditions this afternoon. Thunderstorms will develop
after 3 PM and generally move from southwest to northeast thru
the area. On Friday, expect storms to become more widespread, and
also produce heavy rainfall. (Any storms today/Friday could also
produce strong erratic wind gusts.) It turns colder on Saturday,
with snow levels falling to around 6000 feet by Sun morning.
Periods of rain/snow Sat/Sun. Wind chills will be around 30
degrees at lower elevations and around 20 in the mountains.

MTZ112-192300-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Max Temperature.......75-83...67-73 higher elevations.
   24 hr trend......Unchanged.
* Min Humidity..........15-21 percent.
   24 hr trend......Unchanged.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
  Chance of showers after midnight.
* Min Temperature.......46-53.
   24 hr trend......5 degrees down.
* Max Humidity..........76-86 percent.
   24 hr trend......27 percent up...44 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the east after midnight.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Showers likely and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......59-69...50-57 higher elevations.
   24 hr trend......23 degrees down...18 degrees down higher
elevations.
* Min Humidity..........67-77 percent...79-88 percent higher
  elevations.
   24 hr trend......55 percent up.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph.
     Ridges.............Northeast winds 10 to 15 mph.
* CWR...................50 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler, windy. Showers and chance of thunderstorms.
Lows in the mid 40s. Highs in the lower 50s. West winds around
30 mph.
.SUNDAY...Windy. Showers and slight chance of thunderstorms. Lows
in the upper 30s. Highs in the lower 50s. Northwest winds around
30 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the lower 60s. West
winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 30s. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 40s. Highs in the mid 70s.

$$

MTZ113-192300-
Hill and Blaine Counties-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Max Temperature.......80-85...72-77 higher elevations.
   24 hr trend......1 degree up.
* Min Humidity..........14-24 percent.
   24 hr trend......Unchanged.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers after
  midnight.
* Min Temperature.......51-58.
   24 hr trend......3 degrees up.
* Max Humidity..........61-71 percent.
   24 hr trend......15 percent down...8 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the east after midnight.
* CWR...................0 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Showers and chance of
  thunderstorms.
* Max Temperature.......71-77...66-71 higher elevations.
   24 hr trend......8 degrees down.
* Min Humidity..........42-52 percent.
   24 hr trend......27 percent up...20 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph.
     Ridges.............East winds 10 to 15 mph.
* CWR...................30 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler. Showers and chance of thunderstorms. Lows in
the lower 50s. Highs in the lower 60s. West winds 20 to 25 mph.
.SUNDAY...Showers and slight chance of thunderstorms. Lows in the
lower 40s. Highs in the mid 50s. Northwest winds 20 to 25 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
60s. West winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Chance of showers. Lows in the upper
40s. Highs in the upper 70s.

$$

MTZ114-192300-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Max Temperature.......78-85...65-75 higher elevations.
   24 hr trend......1 degree down.
* Min Humidity..........15-25 percent.
   24 hr trend......Unchanged.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers in
  the evening. Slight chance of thunderstorms through the night.
  Showers likely after midnight.
* Min Temperature.......44-53.
   24 hr trend......6 degrees down...1 degree down higher
elevations.
* Max Humidity..........76-86 percent.
   24 hr trend......40 percent up...35 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...North winds 10 to 15 mph.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the east after midnight.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Showers likely and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......59-69...48-58 higher elevations.
   24 hr trend......18 degrees down.
* Min Humidity..........62-72 percent...76-86 percent higher
  elevations.
   24 hr trend......48 percent up...53 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...North winds 10 to 15 mph.
     Ridges.............North winds 10 to 15 mph.
* CWR...................50 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Windy. Showers, chance of thunderstorms and snow.
Lows in the lower 40s. Highs in the lower 50s. West winds around
30 mph.
.SUNDAY...Windy. Showers, snow showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 40s.
Northwest winds around 30 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
60s. West winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 30s. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Chance of showers. Lows in the mid
40s. Highs in the mid 70s.

$$

MTZ115-192300-
Chouteau and Fergus Counties-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Max Temperature.......80-85...72-78 higher elevations.
   24 hr trend......1 degree up.
* Min Humidity..........16-26 percent.
   24 hr trend......1 percent up.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph shifting to
the north in the afternoon.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms through the night.
* Min Temperature.......53-58.
   24 hr trend......1 degree up.
* Max Humidity..........63-73 percent.
   24 hr trend......1 percent up...4 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph.
     Ridges.............East winds 10 to 15 mph.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Showers likely and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......73-80...67-74 higher elevations.
   24 hr trend......5 degrees down.
* Min Humidity..........41-51 percent.
   24 hr trend......27 percent up...14 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph.
     Ridges.............East winds 10 to 15 mph.
* CWR...................40 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler. Showers and chance of thunderstorms. Lows in
the lower 50s. Highs in the mid 60s. West winds 20 to 25 mph.
.SUNDAY...Cooler, windy. Showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the lower 50s.
Northwest winds around 25 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the upper 30s. Highs in the mid
60s. Southwest winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs in the upper 70s.

$$

MTZ116-192300-
Lincoln Ranger District of the Helena National Forest-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny. Chance of showers and slight
  chance of thunderstorms in the afternoon.
* Max Temperature.......77-82...67-77 higher elevations.
   24 hr trend......3 degrees up.
* Min Humidity..........22-32 percent.
   24 hr trend......4 percent up.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph.
     Ridges.............West winds 10 to 15 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
  thunderstorms in the evening, then showers likely and slight
  chance of thunderstorms after midnight.
* Min Temperature.......45-51.
   24 hr trend......3 degrees down.
* Max Humidity..........76-86 percent.
   24 hr trend......37 percent up.
* Wind (20 FT).
     Lower Elevations...North winds 5 to 10 mph.
     Ridges.............North winds 10 to 15 mph shifting to the
east after midnight.
* CWR...................20 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......63-69...53-63 higher elevations.
   24 hr trend......12 degrees down.
* Min Humidity..........53-63 percent...64-74 percent higher
  elevations.
   24 hr trend......34 percent up...43 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* CWR...................50 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler, windy. Showers with possible thunderstorms
and snow. Lows in the upper 30s. Highs in the upper 40s. West
winds around 25 mph.
.SUNDAY...Showers, snow showers and slight chance of
thunderstorms. Lows in the mid 30s. Highs in the mid 40s.
Northwest winds 20 to 25 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers, slight chance
of thunderstorms and snow showers. Lows in the lower 30s. Highs
in the upper 50s. West winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 30s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the lower 40s. Highs in the upper 60s.

$$

MTZ117-192300-
Central and Eastern Lewis and Clark National Forest Areas-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers and
  thunderstorms in the afternoon.
* Max Temperature.......78-86...70-78 higher elevations.
   24 hr trend......2 degrees up.
* Min Humidity..........17-27 percent.
   24 hr trend......4 percent down.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph shifting to the
north in the afternoon.
     Ridges.............Southwest winds 10 to 15 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms.
* Min Temperature.......50-55.
   24 hr trend......1 degree down.
* Max Humidity..........70-80 percent.
   24 hr trend......29 percent up...23 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph.
     Ridges.............Southeast winds 10 to 15 mph.
* CWR...................20 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......69-76...63-72 higher elevations.
   24 hr trend......7 degrees down.
* Min Humidity..........45-55 percent.
   24 hr trend......36 percent up...21 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph shifting to the
northeast in the afternoon.
     Ridges.............South winds 15 to 20 mph.
* CWR...................40 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler, windy. Showers and chance of thunderstorms.
Lows in the mid 40s. Highs in the upper 50s. West winds around
25 mph.
.SUNDAY...Cooler, windy. Showers, snow showers and slight chance
of thunderstorms. Lows in the upper 30s. Highs in the upper 40s.
Northwest winds around 25 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
60s. Southwest winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows around 40. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the lower 70s.

$$

MTZ118-192300-
Helena and Townsend Ranger Districts of the Helena National
Forest-
337 AM MDT Thu Jun 19 2025

.TODAY...
* Sky/Weather...........Mostly sunny. Chance of showers and
  thunderstorms in the afternoon.
* Max Temperature.......79-87...70-79 higher elevations.
   24 hr trend......1 degree up.
* Min Humidity..........14-22 percent.
   24 hr trend......3 percent up.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of thunderstorms in
  the evening. Chance of showers through the night.
* Min Temperature.......51-56.
   24 hr trend......6 degrees down...1 degree down higher
elevations.
* Max Humidity..........69-79 percent.
   24 hr trend......35 percent up...27 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the south after midnight.
* CWR...................20 percent.

.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers and slight
  chance of thunderstorms in the morning, then showers and chance
  of thunderstorms in the afternoon.
* Max Temperature.......70-80...62-72 higher elevations.
   24 hr trend......7 degrees down.
* Min Humidity..........40-50 percent.
   24 hr trend......31 percent up.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph shifting to the
northwest in the afternoon.
     Ridges.............South winds 15 to 20 mph shifting to the
west in the afternoon.
* CWR...................30 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Cooler, windy. Showers and chance of thunderstorms.
Lows in the mid 40s. Highs in the upper 50s. West winds around
25 mph.
.SUNDAY...Showers, chance of thunderstorms and snow showers. Lows
in the upper 30s. Highs in the lower 50s. Northwest winds 20 to
25 mph.
.MONDAY...Warmer. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 30s. Highs in the lower
60s. Southwest winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the mid 70s.

$$

weather.gov/greatfalls